Simple! Dictionary of Western Philosophy and Dictionary of China Philosophy (mainly used to expand the understanding of philosophy, some people say "philosophy is the history of philosophy"), edited by the Foreign Philosophy History Teaching and Research Section of the Department of Philosophy, Peking University? Selected readings of the original works of western philosophy, Notes of China Philosophy History Teaching and Research Section of Philosophy Department of Peking University: Selected Textbooks of China Philosophy History? (These may only be seen in university libraries, but if you want to buy them, you can go to Confucius' Old Books Network), Laosiguang's new edition of China's Philosophical History (you will be impressed by the profoundness and rigor of the older generation of scholars) (one set is published by Guangxi Normal University Press, which I think is serious and has made outstanding contributions to academics), and Sun Zhengyu's General Theory of Philosophy (a master book written by a real philosopher). I think it is basically worth seeing, if you just want to experience the mysterious beauty of philosophy. This is mainly about the mind), Zhou Wenji (you will clearly understand what wisdom is like pearls), and some others, but I just hate myself for being lazy and not looking closely ... I always feel that it is enough to live with one of the philosophical wisdom once, and I hope you will become more and more intelligent!